Finding the Fourth Proportional to 21,548,077.15, 29,736,977.43 and 11,759,152.09
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Solution
The fourth proportional to 21,548,077.15, 29,736,977.43 and 11,759,152.09 is: 16,227,974.21
Step by Step Solution
- Step 1: Write the proportion equation
21,548,077.15 : 29,736,977.43 = 11,759,152.09 : x - Step 2: Convert to fraction form
21,548,077.15/29,736,977.43 = 11,759,152.09/x - Step 3: Cross multiply
21,548,077.15x = 29,736,977.43 × 11,759,152.09 - Step 4: Simplify right side
21,548,077.15x = 349,681,640,296,267.31 - Step 5: Solve for x
x = 349,681,640,296,267.31/21,548,077.15 - Step 6: Final answer
x = 16,227,974.21
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.